Oslo (OSL) to Seattle / Tacoma (SEA) flight deal in economy from $642
OSLOslo Airport, Gardermoen
Oslo, Norway
SEASeattle–Tacoma International Airport
Seattle / Tacoma, United States
$886 USD
-28%$642 USD
Verified about 10 hours agoDecember 2026
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Fair Availability
38% of dates checked are available within 10% of the lowest price
Tuesday, December 15th, 2026
10 round-trip options
Returning
Sun, Dec 20, 2026•5 Day Trip
$1,343 USD
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Mon, Dec 21, 2026•6 Day Trip
$1,229 USD
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Tue, Dec 22, 2026•7 Day Trip
$1,338 USD
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Wed, Dec 23, 2026•8 Day Trip
$1,112 USD
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Thu, Dec 24, 2026•9 Day Trip
$1,068 USD
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Fri, Dec 25, 2026•10 Day Trip
$1,068 USD
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Sat, Dec 26, 2026•11 Day Trip
$1,221 USD
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Sun, Dec 27, 2026•12 Day Trip
$1,123 USD
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Mon, Dec 28, 2026•13 Day Trip
$1,135 USD
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Tue, Dec 29, 2026•14 Day Trip
$690 USD